/* 默认 */
*{
    margin: 0;
    padding: 0;
}
ul,li{
    list-style: none;
}
a{
    text-decoration: none;
    color: black;
}
a:hover{
    color: #00a4f9;
}
.active{
    color: #00a4f9;
}
/* 版心 */
.w{
    width: 1200px;
    margin: 0 auto;
}
/* 左右浮动 */
.lt{
    float: left;
}
.rt{
    float: right;
}
/* hd */
.hd{
    width: 100%;
    background-color: #f3f6f8;
}
.header{
    height: 91px;
}
.header div{
    float: left;
    margin: 30px 0;
}
.header .h_nav{
    margin:30px 58px 30px 70px;
}
.header .h_nav li{
    padding: 0 10px;
    float: left;
    height: 40px;
    line-height: 40px;
    font-size: 18px;
    margin-right: 27px;
}
.header .h_nav li:first-child{
    border-bottom: 2px solid #02a5ff;
}
.header .h_se input[type=text]{
    height: 38px;
    width: 360px;
    font-size: 14px;
    line-height: 38px;
    text-indent: 1em;
    border: 1px solid #00a5ff;
}
.header .h_user{
    margin:35px 0 0 31px;
    height: 33px;
    line-height: 33px;
}
.header .h_user i{
    display: block;
    border-radius: 50%;
    height: 33px;
    width: 33px;
    background: url(../images/user.png);
    margin-right: 5px;
}
/* bn */
.bn{
    background: url(../images/banner2.png) no-repeat top center #1f066e;
    height: 420px;
    box-sizing: border-box;
}
.banner{
    height: 420px;
    position: relative;   
}
.banner .b_menu{
    width: 190px;
    box-sizing: border-box;
    background-color: #13024b;
    height: 420px;
}
.banner .b_menu ul{
    padding-left:20px;
}
.banner .b_menu a{
    line-height: 45px;
    color: white;
    font-size: 12px;
    display: block;
}
.banner .b_menu a:hover{
    color: #00a4f9;
}   
.banner .b_menu a span{
    float: right;
    padding-right: 20px;
}
.banner .b_icon{
    position: absolute;
    bottom:35px;
    left: 485px;
}
.banner .b_icon ul{
    width: 200px;
    height: 15px;
}
.banner .b_icon ul li{
    width: 15px;
    height: 100%;
    background-color: #fff;
    border-radius: 50%;
    float: left;
    margin-right: 15px;
    opacity: 0.6;
}
.banner .b_icon ul li:first-child{
    border-radius: 45%;
    width: 20px;
    opacity: 1;
}
.banner .b_class{
    height: 300px;
    width: 228px;
    position: absolute;
    right: 0;
    top: 50px;
}
.banner .b_class .cl_top{
    height: 48px;
    background-color: skyblue;
    color: white;
    line-height: 48px;
    text-align: center;
}
.banner .b_class .cl_con{
    height: 252px;
    background-color: #fff;
}
.banner .b_class .cl_con ul li,.cl_btn{
    margin: 0 13px;
    padding: 11px 0;
    border-bottom: 1px solid #ebebeb;
}
.banner .b_class .cl_con ul :nth-last-child(2){
    border-bottom: 0;
}
.cl_btn{
    border-bottom: 0;
    display: block;
    text-align: center;
    width: 200px;
    height: 18px;
    line-height: 18px;
    color: #0fa7ff;
    border: 1px solid #0fa7ff;
    margin-top: 10px;
}
.cl_btn:hover{
    color: white;
    background-color: #0fa7ff;
}
.banner .b_class .cl_con ul li a{
    font-size: 12px;
    color: #aeaeae;
}
.banner .b_class .cl_con ul li:nth-last-child(2) a{
    color: #0fa7ff;
}
/* main */
.main{
    height:2377px;
    background-color: #f3f6f8;
}
.m_nav {
    height: 60px;
    background-color: #fff;
    box-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    margin-top: 10px;
    margin-bottom: 35px;
}
.m_nav h3, .m_nav ul li{
    float: left;
    padding: 0 30px 0 36px;
    border-left: 1px solid #c0c0c0;
    margin: 18px 0 20px 0;
}
.m_nav .xq{
    margin: 20px 30px 20px 0;
    font-size: 12px;
}
/* main content  */
/* 公共样式 */
.con_h{
    height: 20px;
    line-height: 20px;
}
.con_h .lt_sp{
    font-size: 20px;
    float: left;
}
.con_h .lt_mul{
    margin-left: 431px;
}
.con_h .lt_mul li{
    float: left;
    line-height: 20px;
    margin-right: 70px;
}
.con_h .lt_mul li a{
    color:#7e8181;
}
.con_h .lt_mul li:first-child a{
    color:#00a4f9;
}
.con_h .lt_mul li a:hover{
    color:#00a4f9;
}
.con_h .r_a{
    font-size: 12px;
    float: right;
    color: #c0c0c0;
}
.con_h .r_a:hover{
    color: #00a4f9;
}
.con_c ul li{
    width: 228px;
    height: 270px;
    background: #fff;
    float: left;
    margin: 16px 15px 16px 0;
    box-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}
.con_c ul li img{
    display: block;
    width: 100%;
}
.con_c ul li .cl_txt{
    height: 114px;
    padding: 25px 20px;
    box-sizing: border-box;
}
.con_c ul li .cl_txt p:first-child{
    font-size: 14px;
    margin-bottom: 20px;
}
.con_c ul li .cl_txt p:last-child{
    font-size: 12px;
    color: #c0c0c0;
}
.con_c ul li .cl_txt p:last-child span{
    color: #fa7118;
}
.con_c ul li:nth-child(5n){
    margin-right: 0;
}
.con_l{
    width: 192px;
    height: 346px;
    background: url(../images/php1.png);
    padding-left: 36px;
    padding-top: 46px;
    color: white;
    margin-right: 7px;
}
.con_l h3{
    margin-bottom: 43px;
    line-height: 35px;
}
.con_l ul{
    background: url(../images/moreRadius.png) no-repeat 4px 8px;
}
.con_l ul li{
    margin-bottom: 53px;
    font-size: 14px;
    color: #ffffff;
    background: url(../images/radius.png) no-repeat left center;
    padding-left: 16px;
}
.con_l_bg{
    background: url(../images/php2.png);
}
    /* content1 */
.clear{
    overflow: hidden;
} 
/* content2 */
.content2 {
    margin-top: 20px;
}
.content2 .con_h{
    margin-bottom: 20px;
}
.con4_c ul li{
    margin-top: 0;
}
/* ft */
.ft{
    background: #ffffff;
    padding-top: 33px;
    overflow: hidden;
    padding-bottom: 33px;
    height: 157px;
}
.footer .f_lt{
    width: 520px;
    font-size: 14px;
    padding-left: 20px;
}
.footer .f_lt p{
    margin: 20px 0 10px 0;
}
.footer .f_lt .f_btn {
    display: block;
    text-align: center;
    width: 118px;
    height: 34px;
    line-height: 34px;
    color: #0fa7ff;
    border: 1px solid #03a5ff;
    margin-top: 17px;
}
.footer .f_lt .f_btn:hover{
    background-color: #03a5ff;
    color: white;
}
.footer .f_rt ul{
    float: left;
    padding-left:80px;
    padding-right: 30px;
}
.footer .f_rt ul li{
    font-size: 14px;
}
.footer .f_rt ul li:first-child{
    font-size: 16px;
    margin-bottom: 15px;
}